I feel that you may already know this but I thought I would refresh your memory;
Blue Baby syndrome (or simply, blue baby also can be called methemoglobinemia) occurs when newborn babies have cyanotic heart defects, such as:
Persistent truncus arteriosus
Transposition of the great vessels
Tricuspid atresia
Tetralogy of Fallot
Total anomalous pulmonary venous connection
There was a time long ago and it will be again where children were/will be selectively born with traits that are superior to those of us now that lack any type of the abnormalities that affect the population as a whole!
The more as we the so called population becomes in control of these genetic traits of a being/child will make them feel that there will be less aberrations that would make any baby more acceptable to being born with superior taits rather than those that are being thrown by the wayside and destroyed needlessly.
Not sure if this helps or brings any light on the matter!
Ousa